Question

我想在不同的位置展示我的popover。默认情况下，它从用户选择按钮开始。我使用的是UIVIewController而不是UIPopoverController，因为在iOS9中不推荐使用UIPopoverController

class CustomPop: UIViewController, UIPopoverPresentationControllerDelegate {

init() {
    super.init(nibName: nil, bundle: nil)
    self.modalPresentationStyle = UIModalPresentationStyle.Popover;
    self.popoverPresentationController?.delegate = self;
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

func adaptivePresentationStyleForPresentationController(controller: UIPresentationController) -> UIModalPresentationStyle{
    return .None
}
}

//for example something like this but I need it for a popover:
custom = CustomPop()
custom.frame.origin.y = self.view.height - 100
// is there a way to use CGRectMake for the popover to accomplish this?

Answer 1

custom.popoverPresentationController?.sourceRect = CGRectMake(100,100,100,100)

CGRectMake（x.origin，y.origin，width，height）

Answer 2

新解决方案iOS 8 +

// Create Controller
UIPopoverController *pc = [[UIPopoverController alloc] initWithContentViewController:vc];

// Set Point
[pc presentPopoverFromRect:CGRectMake(0, 0, 100, 100)
                    inView:self.view 
                    permittedArrowDirections:UIPopoverArrowDirectionAny 
                    animated:YES];

使用UIPopoverController 已弃用

{{1}}

Answer 3

在 swift 3.1 ：

中试试

MZFormSheetPresentationController.appearance().movementActionWhenKeyboardAppears = .alwaysAboveKeyboard

popover更改位置起始点（原点位置）iOS9

3 个答案: